Hello. My wife was bitten from what I think may be a spider. There was a red area around the bite about 7 inches around. She went to our Dr, and she gave her Antibiotics to take. The Dr did not know what kind of bite. My wife had a fever of 102 about the third day after the bite, she had a fever for about two days, till it subsided. Now after a week, she had developed a rash/ hives around the bite, it s about 5 inches in diameter. We have been putting tree tea oil on it, it seems to be going away now. Was this a spider bite? We live in Machias Maine, Thanks!